SE Asia Stocks-Singapore falls ahead of cbank policy decision

* Singapore shares snap five sessions of gains

* Malaysia, Thailand extend gains from previous session

* Philippine index climbs 1.3 pct

April 12 (Reuters) - Shares in Singapore, among the

more expensive markets in Asia and highly exposed to global

trade, slipped on Thursday ahead of a policy decision by its

central bank, while most other Southeast Asian stock markets

reversed course to end higher.

The Monetary Authority of Singapore is expected to tighten

its exchange-rate based policy at a review on Friday, a Reuters

poll showed. The city state's advance estimate of first-quarter

gross domestic product is also due at the same time.

The Singapore index fell 0.3 percent, as

Oversea-Chinese Banking Corp Ltd closed 0.9 percent

lower and Singapore Telecommunications Ltd lost 1.5

percent.

Indonesian shares dropped, reversing three sessions

of gains, with Telekomunikasi Indonesia slipping 3.1

percent and Astra International shedding 2.8 percent.

Thai shares edged up, led by energy stocks, as

global oil prices extended gains from the previous session.

State energy company PTT rose 0.7 percent, and is

up nearly 25 percent this year as of Wednesday's close. PTT

Exploration and Production climbed 1.7 percent to a

more than one-month high.

Philippines rose 1.3 percent on broad-based gains.

Bank of the Philippine Islands jumped 5 percent, while

SM Prime Holdings Inc ended 3.5 percent higher.

Vietnam shares gained 0.5 percent, helped by a 3.2

percent rise in Petrovietnam Gas Joint Stock Corp and a

4.1 percent increase in Masan Group Corp.

Earlier in the day, most regional markets fell, in line with

broader Asian shares, as the threat of imminent U.S. military

action in Syria rattled investors.

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SOUTHEAST ASIAN STOCK MARKETS: Change on Day

Current Previous Close Pct Move

Singapore 3468.61 3479.76 -0.32

Bangkok 1767.17 1763.22 0.22

Manila 8043.07 7943.93 1.25

Jakarta 6310.802 6360.932 -0.79

Kuala Lumpur 1873.62 1869.89 0.20

Ho Chi Minh 1173.02 1167.11 0.51

Change on year

Market Current End 2017 Pct Move

Singapore 3468.61 3402.92 1.93

Bangkok 1767.17 1753.71 0.77

Manila 8043.07 8558.42 -6.02

Jakarta 6310.802 6355.654 -0.71

Kuala Lumpur 1873.62 1796.81 4.27

Ho Chi Minh 1173.02 984.24 19.18

(Reporting by Nicole Pinto; Editing by Biju Dwarakanath)